Familiarity confers anti‐predator and foraging advantages on juvenile brown trout
Identifieur interne : 001269 ( Main/Merge ); précédent : 001268; suivant : 001270Familiarity confers anti‐predator and foraging advantages on juvenile brown trout
Auteurs : S. Griffiths [Royaume-Uni] ; J. Höjesjö [Royaume-Uni] ; J. Johnsson [Suède]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 2003-12.
Abstract
Many fish species preferentially associate with familiar conspecifics rather than unfamiliar individuals with whom they have no previous experience. The function of discriminatory ability, however, is not well documented. In territorial fish, observations of lower aggression levels among pairs of familiar neighbours lead to two predictions. First, that increased time available for vigilance among familiar fish will allow a faster response to a predator attack, and second that after an attack familiar fish resume foraging more quickly than unfamiliar fish. We conducted an experiment to test these hypotheses using wild juvenile brown trout from Sweden. Our results confirm hypothesis one by demonstrating that familiar brown trout juveniles respond 16% more quickly to a model predator than individuals held in unfamiliar groups. Hypothesis two, that familiar fish resume feeding more quickly after a simulated predator attack was not supported. Nevertheless familiar fish consume a greater number of food items than fish in unfamiliar groups. To the best of our knowledge our results provide the first evidence that familiarity confers advantages through the direct fitness benefits afforded by faster predator evasion responses, and through the long‐term benefits provided by increased feeding opportunities. We discuss the possibility that these advantages promote the formation of stable association patterns and improve growth and survival in wild populations.
Url:
DOI: 10.1111/j.1095-8649.2003.0216m.x
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001526
- to stream Istex, to step Curation: 001524
- to stream Istex, to step Checkpoint: 000A44
Links to Exploration step
ISTEX:8A300F12079B58200CD0D5BF5997D4E092132E84Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Familiarity confers anti‐predator and foraging advantages on juvenile brown trout</title><author><name sortKey="Griffiths, S" sort="Griffiths, S" uniqKey="Griffiths S" first="S." last="Griffiths">S. Griffiths</name></author><author><name sortKey="Hojesjo, J" sort="Hojesjo, J" uniqKey="Hojesjo J" first="J." last="Höjesjö">J. Höjesjö</name></author><author><name sortKey="Johnsson, J" sort="Johnsson, J" uniqKey="Johnsson J" first="J." last="Johnsson">J. Johnsson</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:8A300F12079B58200CD0D5BF5997D4E092132E84</idno><date when="2003" year="2003">2003</date><idno type="doi">10.1111/j.1095-8649.2003.0216m.x</idno><idno type="url">https://api.istex.fr/document/8A300F12079B58200CD0D5BF5997D4E092132E84/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001526</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001526</idno><idno type="wicri:Area/Istex/Curation">001524</idno><idno type="wicri:Area/Istex/Checkpoint">000A44</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000A44</idno><idno type="wicri:doubleKey">0022-1112:2003:Griffiths S:familiarity:confers:anti</idno><idno type="wicri:Area/Main/Merge">001269</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Familiarity confers anti‐predator and foraging advantages on juvenile brown trout</title><author><name sortKey="Griffiths, S" sort="Griffiths, S" uniqKey="Griffiths S" first="S." last="Griffiths">S. Griffiths</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Royaume-Uni</country><wicri:regionArea>(1Cardiff School of Biosciences, Main Building, Cardiff University, PO Box 915, Cardiff, Wales CF10 3TL</wicri:regionArea><wicri:noRegion>Wales CF10 3TL</wicri:noRegion></affiliation></author><author><name sortKey="Hojesjo, J" sort="Hojesjo, J" uniqKey="Hojesjo J" first="J." last="Höjesjö">J. Höjesjö</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Royaume-Uni</country><wicri:regionArea>(1Cardiff School of Biosciences, Main Building, Cardiff University, PO Box 915, Cardiff, Wales CF10 3TL</wicri:regionArea><wicri:noRegion>Wales CF10 3TL</wicri:noRegion></affiliation></author><author><name sortKey="Johnsson, J" sort="Johnsson, J" uniqKey="Johnsson J" first="J." last="Johnsson">J. Johnsson</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Suède</country><wicri:regionArea>2Department of Zoology, Animal Ecology, University of Göteborg, Box 463, SE‐405 30 Göteborg</wicri:regionArea><wicri:noRegion>SE‐405 30 Göteborg</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Fish Biology</title><idno type="ISSN">0022-1112</idno><idno type="eISSN">1095-8649</idno><imprint><publisher>Blackwell Science Ltd/Inc</publisher><pubPlace>Oxford, UK; Malden, USA</pubPlace><date type="published" when="2003-12">2003-12</date><biblScope unit="volume">63</biblScope><biblScope unit="supplement">s1</biblScope><biblScope unit="page" from="226">226</biblScope><biblScope unit="page" to="226">226</biblScope></imprint><idno type="ISSN">0022-1112</idno></series><idno type="istex">8A300F12079B58200CD0D5BF5997D4E092132E84</idno><idno type="DOI">10.1111/j.1095-8649.2003.0216m.x</idno><idno type="ArticleID">JFB216M</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1112</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Many fish species preferentially associate with familiar conspecifics rather than unfamiliar individuals with whom they have no previous experience. The function of discriminatory ability, however, is not well documented. In territorial fish, observations of lower aggression levels among pairs of familiar neighbours lead to two predictions. First, that increased time available for vigilance among familiar fish will allow a faster response to a predator attack, and second that after an attack familiar fish resume foraging more quickly than unfamiliar fish. We conducted an experiment to test these hypotheses using wild juvenile brown trout from Sweden. Our results confirm hypothesis one by demonstrating that familiar brown trout juveniles respond 16% more quickly to a model predator than individuals held in unfamiliar groups. Hypothesis two, that familiar fish resume feeding more quickly after a simulated predator attack was not supported. Nevertheless familiar fish consume a greater number of food items than fish in unfamiliar groups. To the best of our knowledge our results provide the first evidence that familiarity confers advantages through the direct fitness benefits afforded by faster predator evasion responses, and through the long‐term benefits provided by increased feeding opportunities. We discuss the possibility that these advantages promote the formation of stable association patterns and improve growth and survival in wild populations.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Eau/explor/EsturgeonV1/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001269 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 001269 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Eau
|area= EsturgeonV1
|flux= Main
|étape= Merge
|type= RBID
|clé= ISTEX:8A300F12079B58200CD0D5BF5997D4E092132E84
|texte= Familiarity confers anti‐predator and foraging advantages on juvenile brown trout
}}
| This area was generated with Dilib version V0.6.27. |  |